let f = (() => {
  var _ref = babelHelpers.asyncToGenerator(function* () {
    var _iteratorNormalCompletion = true;
    var _didIteratorError = false;

    var _iteratorError;

    try {
      for (var _iterator = babelHelpers.asyncIterator(a), _step, _value; _step = yield _iterator.next(), _iteratorNormalCompletion = _step.done, _value = yield _step.value, !_iteratorNormalCompletion; _iteratorNormalCompletion = true) {
        let {
          x,
          y: [z]
        } = _value;
        g(x, z);
      }
    } catch (err) {
      _didIteratorError = true;
      _iteratorError = err;
    } finally {
      try {
        if (!_iteratorNormalCompletion && _iterator.return != null) {
          yield _iterator.return();
        }
      } finally {
        if (_didIteratorError) {
          throw _iteratorError;
        }
      }
    }
  });

  return function f() {
    return _ref.apply(this, arguments);
  };
})();